Contributed papers at Conferences

1. Thirteenth Southeastern International Conference on Combinatorics, Graph Theory and Computing, Boca Raton, Florida, February 1982.

2. Fifteenth Southeastern International Conference on Combinatorics, Graph Theory and Computing, Baton Rouge, Louisiana, March 1984.

3. Seventeenth Southeastern International Conference on Combinatorics, Graph Theory and Computing, Boca Raton, Florida, February 1986.

4. Second Ontario Combinatorics Workshop, McMaster University, Hamilton, Ontario, October 1986.

5. Eighteenth Southeastern International Conference on Combinatorics, Graph Theory and Computing, Boca Raton, Florida, February 1987.

6. Fifth Caribbean Conference on Combinatorics and Computing, University of the West Indies, Cave Hill, Barbados, January 1988.

7. Twentieth Southeastern International Conference on Combinatorics, Graph Theory and Computing, Boca Raton, Florida, February 1986.

8. Third Vermont Combinatorics Workshop, University of Vermont, Held in Stowe, Vermont, June 1989.

9. Fifth Vermont Combinatorics Workshop, University of Vermont, Held in Stowe, Vermont, June 1991.

10. Sixth Midwestern Conference on Combinatorics, Computing and Computing, Lincoln Nebraska, November 1991.

11. Twenty Fourth Southeastern International Conference on Combinatorics, Graph Theory and Computing, Boca Raton, Florida, February 1993.

12. Twenty Third Annual Conference on Numerical Mathematics and Computing, University of Manitoba, Winnipeg, Manitoba, September 1993.

13. Twenty Fifth Southeastern International Conference on Combinatorics, Graph Theory and Computing, Boca Raton, Florida, March 1994.

14. Eight Midwestern Conference on Combinatorics, Computing and Computing, Lincoln Nebraska, October 1994.

15. Twenty Sixth Southeastern International Conference on Combinatorics, Graph Theory and Computing, Boca Raton, Florida, February 1995.

16. Twenty Seventh Southeastern International Conference on Combinatorics, Graph Theory and Computing, Baton Rouge, Louisanna, February 1996.

17. Eleventh Midwestern Conference on Combinatorics, Cryptogrphy and Computing, Las Vegas, Nevada, October 1994.

18. Twenty eight Southeastern International Conference on Combinatorics, Graph Theory and Computing, Boca Raton, Florida, February 1996.

19. Winnipeg Combinatorial Mathematics Conference, Winnipeg, Manitoba, September 1998.